In addition to the high strength steel face, hollow construction in the sole increases the thinness throughout the face for higher ball speed even on the lower part of the face
Slightly higher toe and heel will make golfers feel more forgiveness as well as confidence at address
Tungsten sole weight for 3-, 4-, 5-irons generates lower CG and assists with higher trajectory
VAR medallion inserted in the cavity increases feel and absorbs vibration on off-center hits.
20V grooves on the long through middle irons - Prevents excessive spin and stabilizes ball flight for consistent distance.
10V grooves on short irons - Produces more aggressive backspin for those pin-seeking shots.